If 'A' is B's sister, 'C' is B's mother, 'D' is C's father, 'E' is D's mother, then how is A related to D ?

A and B are brother and sister respectively. C is father of A, D is sister of C and E is mother of D, then how is B related to E?

P is the mother of K; K is the sister of D; D is the father of J. How is P related to J?

P is the sister of Q. Q is the father of R. S is the mother of R and T is the father of S. How is S related to Q?

If X is the sister of Y, Y is the father of Z and Z is the brother of W, then how is X related to W?

Introducing a man, a woman said 'His mother is the only daughter of my father'. How is the man related to the woman?